Kinetics of Al3+ and M2+ (M2+ = Co2+, Ni2+, Cu2+) cohydrolysis

Authors
Kopylovich, MN Kirillov, AM Baev, AK
Citation
Mn. Kopylovich et al., Kinetics of Al3+ and M2+ (M2+ = Co2+, Ni2+, Cu2+) cohydrolysis, RUSS J IN C, 45(5), 2000, pp. 815-817
Citations number
5
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY
ISSN journal
00360236 → ACNP
Volume
45
Issue
5
Year of publication
2000
Pages
815 - 817
Database
ISI
SICI code
0036-0236(200005)45:5<815:KOAAM(>2.0.ZU;2-6
Abstract
The activation energies of concurrent hydrolysis of Al3+ and M2+ (M2+ = Cu2 +, CO2+, Ni2+) ions for Al3+ : M2+ = 1 : 1 were determined. The activation energies of polynuclear hydrolysis in the Al3+-M2+-NO3--H2O systems differ appreciably from the additive values. The Al3+-Cu2+ and Al3+-Ni2+ heteronuc lear species have the kinetic advantage over the two fractions of polymeric homonuclear hydroxo complexes. The heteronuclear species forming in the Al 3+-Co2+-NO3--H2O systems are kinetically unstable.